| 摘要 |
A head assembly of a putter includes an extending member extending rearward opposite to a face of a head of the putter and having various shapes, and a replaceable weight mounted to the lower side of the extending member by a bolt and having multiple grades in weight. Since a golfer can freely select the disc weight, the golfer can freely choose a putter having an optimal weight suitable for the golfer's physique, putting style, and weight, and can adjust weight of the head assembly of the putter thereby enhancing the golfer's ability to play golf.
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